Light Travel

Some articles on light, light travel:

Speed Of Light - History - First Measurement Attempts
... to having performed it some years earlier, to measure the speed of light by observing the delay between uncovering a lantern and its perception some distance away ... He was unable to distinguish whether light travel was instantaneous or not, but concluded that if it were not, it must nevertheless be extraordinarily rapid ... The first quantitative estimate of the speed of light was made in 1676 by Rømer (see Rømer's determination of the speed of light) ...
Gullstrand–Painlevé Coordinates - Speeds of Light
... For light ... The speed of light is 1, the same as in special relativity ... At the event horizon, the speed of light shining outward away from the center of black hole is ...

Famous quotes containing the words travel and/or light:

    Ktaadn ... is an Indian word signifying highest land,... very few, even among backwoodsmen and hunters, have ever climbed it, and it will be a long time before the tide of fashionable travel sets that way.
    Henry David Thoreau (1817–1862)

    So we saunter toward the Holy Land, till one day the sun shall shine more brightly than ever he has done, shall perchance shine into our minds and hearts, and light up our whole lives with a great awakening light, as warm and serene and golden as on a bankside in autumn.
    Henry David Thoreau (1817–1862)